Alien3 (エイリアン3) is a sidescrolling video game based on the movie of the same name. It was developed by Probe Software and published by Arena Entertainment for the Sega Mega Drive, Sega Master System, Sega Game Gear, Amiga and Commodore 64 in 1992. Different games based on the movie were released on the Super Nintendo Entertainment System and the Game Boy.
The player's task in game is to rescue hostages and defeat aliens which have taken over human colonies. There is a set amount of time to complete this task in each level. The player carries a gun by default with a limited supply of ammunition which can be shot with B aiming with the D-pad and holding down B for rapidfire, however it is possible to also pick up limited supplies of other weapons throughout the levels, cycling between each weapon (and the standard gun) with A and using them with B. C jumps. To rescue a hostage or pick up an item, simply touch it.